A Consolidated Grant in Astrophysical Fluids In Applied Mathematics at Leeds

利兹应用数学天体物理流体综合资助

• 批准号: ST/K000853/1
• 负责人: Steve Tobias
• 金额: $ 193.66万
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2013
• 资助国家: 英国
• 起止时间: 2013 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FK000853%2F1
• 关键词: Consolidated; Grant; Astrophysical; Fluids; Applied

Many astrophysical phenomena involve the complex interaction between magnetic fields, rotation and fluid flows. We intend to undertake a systematic and integrated programme of research to investigate this complex interaction in a wide variety of astrophysical objects. We shall utilise a combination of analytical and numerical techniques (including the application of cutting edge numerical algorithms optimised for use on massively parallel machines) to gain an understanding of such phenomena. Our unifying philosophy is to investigate the underlying fundamental physical interactions in these astrophysical fluids and to use expertise gained in one area in order to make progress on different objects that have the same underlying physical structures. The physical phenomena that we shall address are: (1) The generation of magnetic fields in the Sun, including the formation of the well-known eleven year sunspot cycle.(2) The formation of sunspots and the link with the magnetic fields in the solar corona.(3) The generation of magnetic fields in planets.(4) The evolution of planetary orbital dynamics and the importance of tidal effects.(5) The decay of magnetic fields and the thermal structure of neutron stars.(6) The dynamics of relativistic jets.

许多天体物理现象涉及磁场、自转和流体流动之间的复杂相互作用。我们打算开展一项系统和综合的研究方案，调查各种天体之间的这种复杂的相互作用。我们将利用分析和数值技术（包括应用最先进的数值算法优化用于大规模并行机）的组合，以获得对这种现象的理解。我们的统一理念是研究这些天体物理流体中潜在的基本物理相互作用，并利用在一个领域获得的专业知识，以便在具有相同基本物理结构的不同物体上取得进展。我们要讨论的物理现象是：（1）太阳磁场的产生，包括众所周知的十一年太阳黑子周期的形成。(2)太阳黑子的形成与日冕磁场的联系。(3)行星磁场的产生。(4)行星轨道动力学的演变和潮汐效应的重要性。(5)磁场衰减与中子星的热结构。(6)相对论性喷流的动力学。

项目成果

Dynamics of the solar tachocline - III. Numerical solutions of the Gough and McIntyre model

• DOI: 10.1093/mnras/stt1065
• 发表时间: 2013-09-01
• 期刊: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
• 影响因子: 4.8
• 作者: Acevedo-Arreguin, L. A.;Garaud, P.;Wood, T. S.
• 通讯作者: Wood, T. S.

ON LARGE-SCALE DYNAMO ACTION AT HIGH MAGNETIC REYNOLDS NUMBER

• DOI: 10.1088/0004-637x/789/1/70
• 发表时间: 2014-05
• 期刊: The Astrophysical Journal
• 作者: F. Cattaneo;S. Tobias

A multidimensional numerical scheme for two-fluid relativistic magnetohydrodynamics

二流体相对论磁流体动力学的多维数值格式

• DOI: 10.1093/mnras/stt2247
• 发表时间: 2014
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Barkov M

Incorporating velocity shear into the magneto-Boussinesq approximation

将速度剪切纳入磁-布辛斯克近似中

• DOI: 10.1080/03091929.2014.917296
• 发表时间: 2014
• 期刊: Geophysical & Astrophysical Fluid Dynamics
• 影响因子: 1.3
• 作者: Bowker J

Generalised quasilinear approximation of the helical magnetorotational instability

螺旋磁旋转不稳定性的广义拟线性近似

• DOI: 10.1017/s0022377816000556
• 发表时间: 2016
• 期刊: Journal of Plasma Physics
• 影响因子: 2.5
• 作者: Child A